actionban = iptables -I f2b-bad-auth 1 -s <ip> -j DROP
actionunban = iptables -D f2b-bad-auth -s <ip> -j DROP
5. Restart Fail2Ban
Using DOCKER-USER chain ensures that the blocked IPs are processed in the correct order with Docker. See more in: https://docs.docker.com/network/iptables/
5. Configure and restart the Fail2Ban service
Make sure Fail2Ban is started after the Docker service by adding a partial override which appends this to the existing configuration.
@ -154,7 +154,40 @@ Add the respective Traefik labels for your domain/configuration, like
If your Traefik is configured to automatically request certificates from *letsencrypt*, then you’ll have a certificate for ``mail.your.doma.in`` now. However,
``mail.your.doma.in`` might only be the location where you want the Mailu web-interfaces to live — your mail should be sent/received from ``your.doma.in``,
and this is the ``DOMAIN`` in your ``.env``?
To support that use-case, Traefik can request ``SANs`` for your domain. Lets add something like
To support that use-case, Traefik can request ``SANs`` for your domain. The configuration for this will depend on your Traefik version.
----
Traefik 2.x using labels configuration
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Add the appropriate labels for your domain(s) to the ``front`` container in ``docker-compose.yml``.
Of course, be sure to define the Certificate Resolver ``foo`` in the static configuration as well.
Alternatively, you can define SANs in the Traefik static configuration using routers, or in the static configuration using entrypoints. Refer to the Traefik documentation for more details.
Traefik 1.x with TOML configuration
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lets add something like
..code-block:: yaml
@ -163,7 +196,11 @@ To support that use-case, Traefik can request ``SANs`` for your domain. Lets add
main = "your.doma.in" # this is the same as $TRAEFIK_DOMAIN!
sans = ["mail.your.doma.in", "webmail.your.doma.in", "smtp.your.doma.in"]
to your ``traefik.toml``. You might need to clear your ``acme.json``, if a certificate for one of these domains already exists.
to your ``traefik.toml``.
----
You might need to clear your ``acme.json``, if a certificate for one of these domains already exists.
You will need some solution which dumps the certificates in ``acme.json``, so you can include them in the ``mailu/front`` container.
One such example is ``mailu/traefik-certdumper``, which has been adapted for use in Mailu. You can add it to your ``docker-compose.yml`` like:
@ -215,22 +215,29 @@ On the new relayed domain page the following options can be entered for a new re
* Relayed domain name. The domain name that is relayed. Email messages addressed to this domain (To: John@example.com), will be forwarded to this domain.
No authentication is required.
* Remote host (optional). The SMPT server that will be used for relaying the email message.
When this field is blank, the Mailu server will directly send the email message to the relayed domain.
As value can be entered either a hostname or IP address of the SMPT server.
By default port 25 is used. To use a different port append ":port number" to the Remote Host. For example:
123.45.67.90:2525.
* Remote host (optional). The host that will be used for relaying the email message.
When this field is blank, the Mailu server will directly send the email message to the mail server of the relayed domain.
When a remote host is specified it can be prefixed by ``mx:`` or ``lmtp:`` and followed by a port number: ``:port``).
`target` can also be an IPv4 or IPv6 address (an IPv6 address must be enclosed in []: ``[2001:DB8::]``).
* Comment. A text field where a comment can be entered to describe the entry.
Changes are effective immediately after clicking the Save button.
NOTE: Due to bug `1588`_ email messages fail to be relayed if no Remote Host is configured.
As a workaround the HOSTNAME or IP Address of the SMPT server of the relayed domain can be entered as Remote Host.
Please note that no MX lookup is performed when entering a hostname as Remote Host. You can use the MX lookup on mxtoolbox.com to find the hostname and IP Address of the SMTP server.
Alexander Graf
3 years ago